手早い答え
participar は活動に参加すること、assistir は観客・観察者として見ることです。
確実な見分け方は、英語から訳す前に、その単語の働きを見きわめることです。
それぞれの単語の働き
participar
to participate or take part
Use participar for being actively involved in an event, group, or activity.
assistir
to watch or attend
Use assistir for being present mainly as a viewer or audience member.
選び方
- participar: Choose participar if the sentence points to being actively involved in an event, group, or activity.
- assistir: Choose assistir if the sentence points to being present mainly as a viewer or audience member.
例文
Participei da reunião.
I took part in the meeting.
Assisti à palestra pela internet.
I watched the talk online.
よくある落とし穴
Being present does not prove participation. In careful usage, assistir meaning watch takes a: assistir à palestra.
文脈の中で練習する
自分の実生活から文を一つ選び、二回書いてみましょう。一度はparticiparで、もう一度はassistirで。どちらも成り立ちそうなら、意味の違いを言葉にしてみましょう。